baber/WOPTO huggingface dataset:
Patent GB-874861-A (GB)
Title: Cobalt-containing hydrogenation catalysts and the production of the same
Inventor: ADAM KARL
IPC: B01J21/00
Filed: 1959-09-08
Abstract: A hydrogenation catalyst containing 5-30 (preferably 10-20) % wt. Co oxide, less than 6% wt. Cr oxide (preferably 0.03-5% wt. thereof) and/or Mn oxide (preferably 0.01-2% wt. thereof) and 0.05-5 (preferably 0.3-1.5% wt.) of phosphoric, boric or sulphuric acid in the pyro or poly acid form, applied to more than 59% (preferably 71.5% or more) of a carrier, is prepared by treating the catalyst ingredients with such acid and heating to a temperature at which conversion to the pyro or poly form is effected; thus, using phosphoric acid, the catalyst may be heated to 500-650 DEG C. Alternatively, a carrier need not be used, in which case the other catalyst ingredients are used in the same relative proportions. Specified carriers are fullers earth, silicic acid strings, silica gel, aluminium oxide and silicates, e.g magnesium silicate.  The catalysts are particularly suitable for conversion of aliphatic nitriles (including dinitriles) to the corresponding amines (or diamines); examples are given of the hydrogenation in liquid ammonia of adiponitrile to hexamethylenediamine, and the hydrogenation of suberonitrile to octamethylenediamine is also mentioned.ALSO:A hydrogenation catalyst containing 5-30% (preferably 10-20%) wt. Co oxide, less than 6% wt. Cr oxide (preferably 0.03-5% wt. thereof) and/or Mn oxide (preferably 0.01-2% wt. thereof) and 0.05-5% (preferably 0.3-1.5% wt.) of phosphoric, boric or sulphuric acid in the pyro or poly acid form, applied to more than 59% (preferably 71.5% or more) of a carrier, is prepared by treating the catalyst ingredients with such acid and heating to a temperature at which conversion to the pyro or poly form is effected; thus, using phosphoric acid, the catalyst may be heated to 500-650 DEG C. Alternatively, a carrier need not be used, in which case the other catalyst ingredients are used in the same relative proportions. Specified carriers are fuller's earth, silicic acid strings, silica gel, aluminium oxide and silicates, e.g. magnesium silicate.  The catalysts are particularly suitable for conversion of nitriles (including dinitriles) to the corresponding amines (or diamines).
Patent GB-952295-A (GB)
Title: Improvements in and relating to cartons for radio valves and the like
Inventor: WALKER JOSEPH ROBERT GORDON
IPC: B65D5/50
Filed: 1962-08-09
Abstract: 952,295. Boxes for valves. THORN-AEI RADIO VALVES & TUBES Ltd. Aug. 9, 1962, No. 30610/62. Heading B8P. An insert 10 of flexible material, which may be paperboard folded along a line 11, holds a radio valve 17 or like article in a carton 16 by means of tongues 14, 15. Slits 12 and 13 form the tongues which grip the valve 17 when the insert is folded about the valve and inserted in the carton.
Patent GB-804962-A (GB)
Title: Preparation of high purity lithium carbonate from lithium ores
Inventor: CUNNINGHAM GEORGE LEWIS
IPC: C01D15/08
Filed: 1956-10-09
Abstract: High purity lithium carbonate is obtained by treating an aqueous solution containing 2 to 44 per cent, preferably 15 to 30 per cent, by weight of lithium chloride together with a substantial concentration sodium chloride or potassium chloride or both with sodium carbonate, heating the resulting mixture to 60 DEG  to 100 DEG C., preferably 95 DEG  to 100 DEG  C., and separating solid lithium carbonate from the heated mixture.  The lithium chloride solution may be obtained by roasting lithium ore, preferably containing 2 to 9 per cent lithium oxide, with calcium carbonate and chloride, whereby gaseous crude lithium chloride is evolved, which is dissolved in the mother liquor chloride solution remaining after the separation of solid lithium carbonate.  In one form of the invention pegmatite ore is coarsely ground, and the a -spodumone constituent is concentrated e.g. by flotation.  This is heated to convert it into b -spodumone, ground, and passed through a magnetic separator to remove iron oxide. The b -spodumene is mixed with sand, calcium carbonate and calcium chloride and passed through a cement kiln at 1100 DEG  to 1200 DEG C., leaving a portland cement clinker and forming gaseous lithium chloride, contaminated with sodium and potassium chlorides, which is condensed to a dust in a heat exchanger.  The dust is collected, extracted with water, and the insoluble residue returned to the kiln. The solution is combined with alkali metal chloride solution and solids from elsewhere in the process and the resulting slurry is brought to 25 DEG  to 30 DEG  C. when fairly pure solid sodium chloride is recovered.  To the liquid is added anhydrous sodium carbonate and the temperature raised to 80 DEG  to 100 DEG  C., thereby forming pure lithium carbonate which is recovered.  The mother liquor is concentrated to a solids concentration of 55 per cent and crude sodium chloride is separated and recycled to the next batch of crude aqueous lithium chloride solution.  The barren liquor is cooled to 0 DEG  to 5 DEG  C., when fairly pure solid potassium chloride separates and is recovered, and the residual liquor is recycled to the initial crude aqueous chloride solution.ALSO:A high grade Portland cement clinker of low magnesium and iron content is obtained as a by product when a mixture of beta-spodument, sand, limestone, and calcium chloride is roasted during the preparation of lithium carbonate (see Group III].
Patent GB-1379212-A (GB)
Title: Manufacture of elongate assemblies particularly pivot-pins for heavy-duty hinge-type fasteners
IPC: D07B1/02
Filed: 1971-11-01
Abstract: 1379212 Treating fibrous assemblies; braids WILZTUCHVERWALTUNGS GmbH 1 Nov 1971 [30 Oct 1970] 30711/74 Divided out of 1379211 Headings D1K D1L and D1P A method of manufacturing an elongate assembly, e.g. for use as a pivot-pin, comprises the steps of roughening an elongate multi-ply assembly of interlaced plastics fibres using a solvent, drying the assembly and positioning it in a tank containing a liquid impregnant, the impregnant comprising a solvent and a thermosetting resin, evacuating the tank, immersing the assembly within the liquid impregnant, pressurising the tank wth an anhydrous gas to 5 to 10 atmospheres gauge pressure, withdrawing the assembly from the tank and passing the assembly through a duct heated to 50 to 100‹C to remove the solvent and harden the thermosetting resin, and winding the assembly on to a grooved drum. The assembly may subsequently be subjected to a heat treatment for several hours at about 150‹C. Preferably the fibres are braided into two concentric tubes 5 and 6, Fig. 1, the fibres 2 in the inner tube having a diameter 5 to 20 times that of the fibres 3 braided in the outer tube. The assembly may have a core of single or multi-strand steel wire. The fibres may be polyamide and/or polyester. A wetting agent may be applied to the fibres prior to roughening to the solvent used for roughening, or to the liquid. The impregnant may further comprise a finely-divided polytetrafluoroethylene lubricant. The assembly may be wound on a drum 9, Fig. 3, positioned in a tank 8 which is evacuated and then rotated through 180‹ about spindle 8 to immerse the drum and and tubes in the impregnant 10. The impregnated assembly is withdrawn from the tank through a nozzle 12 and is passed via the heating duct to be wound on the grooved drum. The resultant assembly has high mechanical strength, elasticity and shape retention, and is resistant to abrasion, hydrolysis and solvent attack.
Patent GB-1352190-A (GB)
Title: Method for rapidly producing saturated vapour rich in sparingly volatile substance
IPC: A61L2/22
Filed: 1972-06-26
Abstract: 1352190 Separation of polyhydric alcohols from concentrated solutions thereof E P REMY ET CIE 1 July 1971 [7 Aug 1970] 30884/71 Heading B1B A water-miscible substance less volatile than water, e.g. glycerol or a mono- or polyethylene glycol, is vaporized from an aqueous solution thereof by pumping the solution from tank 26 through heater 25, where the solution may be heated to a temperature of 100‹-120‹C., and then introducing it through valve 32 into the upper portion of distillation cloumn 24 the lower portion of which is supplied, through duct 30, with steam at 100‹C. and atmospheric pressure (evaporator 29 being inoperative). A vapour, at a temperature between 110‹ and 150‹C., rich in the required substance leaves the top of the column through duct 42; and may be used to sterilize containers. A dilute aqueous solution of the substance flows from the base of the column into tank 27. When it is desired to concentrate the dilute solution, the various valves are adjusted so that it is pumped from tank 27 through heater 25 and valve 33 into the middle of the column, the base of which is now supplied with hot vapour from evaporator 29. The required concentrated solution flows from the base of the column into tank 26; and watervapour is discharged from the top through duct 41.
Patent GB-533805-A (GB)
Title: Improvements in or relating to welding rods
IPC: B23K35/365
Filed: 1939-11-27
Abstract: 533,805. Fluxes; uniting by fusion. PHILIPS LAMPS, Ltd. Nov. 27, 1939, No. 30906. Convention date, Nov. 29, 1938. [Class 82 (ii)] [Also in Group XXII] Arc welding rods are provided with a slagforming coating containing ground ivory nuts as an organic ingredient. The slag-forming ingredients may comprise iron or titanium ere powder, alkaline or alkaline earth carbonate, clay or kaolin and ferro-manganese and are mixed with a binding agent such as siliceous varnish. In an example a coating comprises 30-60 per cent. of titanium oxide, 10-20 of clay, 5-15 calcium carbonate, 5-30 of ferro-manganese and 10-25 of ground ivory nuts.
Patent GB-976668-A (GB)
Title: Conveyors
Inventor: BAKER JAMES MUNDY
IPC: B65G19/16
Filed: 1962-08-13
Abstract: 976,668. Endless conveyers. JAMES BAKER CONVEYORS Ltd. Aug. 2, 1963 [Aug. 13, 1962], No. 30938/62. Heading B8A. A conveyer for particulate materials 53 comprises a housing 40 containing a V-section endless belt 46 running between a driving and a free V-pulley 44, 45 which are adjustably spaced, the belt having transverse bars 47 flexibly attached thereto leaving the driven faces of the V-belt free from projections. In a first embodiment the belt 46 is made of a series of overlapping flexible strips 62 which are tapered in length and depth and are riveted or bolted together. At intervals a relatively longer strip 62A, 62B is used, to the end of which is attached a transverse bar 47 formed in wood, leather or rubber. The bar 47 may be square or angled. Material 53 is fed to the lower run of the belt from a hopper 50 and through holes 48 in the sides of the housing 40. A bridge within the hopper shields the upper run of the belt. An adjustable baffle 52 controls the depth of conveyed material in the housing and a further baffle 54 deflects the material to an outlet 55 in the bottom of the housing. A scraper 57 cleans the V-groove of the pulley 45. The upper run of the belt is supported on bearing strips 60. The material can be delivered from a shoot to one end of the upper run of the belt, Fig. 9 (not shown) and projected from the belt at the other end of the upper run. In this case, a support platform spans the housing 40 under the upper run of the belt. In a further embodiment, Fig. 6 (not shown) the V-belt comprises solid rubber or canvas and may have reinforcing wire 68. The bars are attached to flexible strips which are attached to the belt by an adhesive. In another embodiment Figs. 20-28 (not shown) the overlapping flexible strips forming the belt are connected by a series of two-part rivets one part of which has an integral head which engages a stabilizing runner between the end pulleys. When the conveyer is adapted for carrying material vertically, Fig. 29 (not shown) the housing is in the form of a loop surrounding the belt which runs around a pulley at the top and a bearing plate at the bottom. The transverse arms of the belt in this case may have extensions Fig. 5 (not shown) or may have extensions with turned-in ends Fig. 31 (not shown).
Patent GB-685039-A (GB)
Title: Improvements in and relating to means for mounting tool bits in boring bars or othertool holders
IPC: B23B29/034
Filed: 1948-11-29
Abstract: 685,039. Diamond tools. JEARUM, F. C. Nov. 29, 1948, No. 30949/48. Class 124. [Also in.Group XXII] In a tool holder, the tool bit 4, which is fitted with a diamond tip, is angularly adjustable and is releasably secured in a hollow sleeve 3 which is provided at the ends thereof with threads 3d, 3e, of different pitch, each thread being engaged by a nut 6, or 7, and the nuts being provided with calibrated flanges for indicating the rotational positions of the nuts. The sleeve, which is reversibly insertable in the tool holder, is provided with seatings 3f, 3g, in either of which the tool bit is secured, according to the scale selected for use, by means of a set screw 5. Specification 622,342 is referred to.
Patent GB-893157-A (GB)
Title: Improvements in or relating to direct current voltage generating systems supplied byan alternating current
IPC: H02J7/12
Filed: 1959-09-11
Abstract: 893,157. Automatic battery-charging control systems. SOC. DES ACCUMULATEURS FIXES ET DE TRACTION. Sept. 11, 1959 [July 12, 1958], No. 31091/59. Class 38 (4). An automatic battery-charging system has regulating means whereby the charging voltage is maintained constant whilst the charging current is varied according to the state of the battery together with means for ensuring that the battery is recharged at a high rate after a supply failure for a time proportional to the duration of the failure. A battery 6 is charged by means of a rectifier 2 connected to an alternating current supply 1 by way of a winding 3a of a transductor 3. During charging of the battery 6 a relay 9 is energized by the rectifier 2 to energize a regulating device over a contact 8. The regulating device comprises a pair of transistors T 1 , T 2 ; the base b 1  of transistor T 1  being connected to a point on a potential divider R 1 , R 2 , this point being related to the state of the battery. The transistor T 1  is conductive or not according to the difference between its base potential and a reference potential 10 applied to its emitter e 1 . Transistor T 1  is arranged to control transistor T 2  and hence the current flowing in the winding 3c of the transductor 3 so varying the impedance of a winding 3b in the charging circuit to vary the charging current. Should failure of the A.C. supply 1 occur the relay 9 becomes de-energized, thus connecting a cell 13 and a resistor 15 across the battery 6 by way of a contact 14. Battery 6 only now supplies the load and at the same time charges the cell 13 of the gas-tight alkaline type, which has similar charge and discharge characteristics. Upon resumption of the supply relay 9 is re-energized and the cell 13 discharges through a resistor 16. The base b 3  of a transistor T 3  is thus biased so that transistor T 3  conducts thereby causing transistor T 2  to conduct, overriding the normal control of the transistor T 2  such that the impedance of the transductor 3 remains at a minimum, the battery 6 then being charged at the full rate until the cell 13 is discharged, this period being approximately equal to the time the failure the A.C. supply lasted.
Patent GB-466468-A (GB)
Title: A new or improved waterproof cover for shopping baskets and the like
IPC: B65D51/00
Filed: 1936-11-14
Abstract: 466,468. Basket &c. covers. CLARK, J. C. Nov. 14, 1936, No. 31170. [Classes 18 and 133] A cover a for a basket &c. consists of flexible and waterproof material, e.g. indiarubber, and is provided with a skirt portion a<4> which grips the sides of the basket and with a central slot a<1> which allows of access to the contents and through which the basket handle b<1> can be passed. The slot a<1> terminates in cross slits or beaded apertures and it is covered by a hinged flap c. The skirt portion grips the sides of the basket due to its natural resiliency or to a shaped and beaded edge with which it is formed, or it may be held down by an elastic band secured as by adhesive or stitching at one point on the edge of the cover, or by a cord threaded through pairs of holes near the edge of the skirt. A tongue c<2> on the free edge of flap c is either tucked under the edge of the skirt or slipped under the band holding down the skirt. The flap c may also be held closed by a snap or sliding clasp fastener. The cover may be in two parts and have an oval, circular, or square area.
Patent GB-789062-A (GB)
Title: Bladed-disc harrows
IPC: A01B21/00
Filed: 1955-01-20
Abstract: 789,062. Agricultural implements. OKSANEN, A. Jan. 20, 1955, No. 31178/56. Divided out of 789,061. Class 6(1). A harrow comprises discs 23 secured to axles 5 which are mounted in a frame 2 at an angle to the direction of travel of the implement, the discs having secured thereto a plurality of blades or tines 6 which are each preferably twisted about a longitudinal axis in the manner of a propeller blade and are formed with a pressed out rib 26. As shown, the positions of the axles 5 with respect to the frame 2 are adjustable. The implement is provided with a drawbar coupling as disclosed in Specification 789,061 for connection to a tractor having a hydraulic lift. A cover 8 is provided and may be formed as a box in which weights may be placed. The blades or tines 6 are attached to the discs 23 by bolts or rivets so that damaged blades may be replaced.
Patent GB-520733-A (GB)
Title: Mechanism for converting rotary motion into an oscillatory or rocking movement
IPC: F01L1/30
Filed: 1938-10-28
Abstract: 520,733. Converting rotary into oscillating motion; valve gear. EVENSON, T. Oct. 28, 1938, No. 31208. [Class 80 (iii)] [Also in Group XXVII] Consists in means for converting uni - directional rotary motion into oscillating motion, particularly adapted for positive push-pull actuation of high-speed internal - combustion engine poppet valves. A bar 1 is pivoted at its lower end 7 to both a link 2 pivoted at 3 and a link 4 journalled on the pin of a driving crank 5, but the pivots of the links 2, 4 with the bar 1 need not be coincident. Towards its upper end the bar is pivoted at 10 to a link 8 pivoted at 9. The upper end of the bar carries a pin 11 which moves in alternate directions over a substantially semi-elliptical path 12 and engages a slot 13 of a rocker arm 14 actuating a spindle 15 to which valve-rocker levers 16 may be keyed. In order to ensure smooth engagement of the pin 11 with the gap 13 the longer limb 14a of this gap is set-back as at 14b. With this mechanism the usual compression springs 18 may be dispensed with.
Patent GB-428460-A (GB)
Title: Improvements relating to looms for weaving pile fabrics
IPC: D03D27/06
Filed: 1933-11-09
Abstract: 428,460. Pile-fabric looms. HARVEY, I. F., Thornfield, Menston-in-Wharfdale, and HARVEY, E. T., 9, Lynton Villas, Toller Lane, Bradford, both in Yorkshire. Nov. 9, 1933, No. 31272. [Class 142 (ii)] Looped pile fabrics are produced by the aid of free-ended gut threads 6 which extend over the ground structure in the direction of the warp and form a temporary support for the pile loops 5 which pass over auxiliary picks 8. The gut threads are held at the rear of the loom by a clamp 7 and may be raised and lowered or held in horizontal position according to whether a single or double fabric is being produced or according to the number of shuttles or type of shuttle boxes employed.
Patent GB-640674-A (GB)
Title: Improvements relating to cathode ray tube equipment
IPC: H02M7/10
Filed: 1947-11-28
Abstract: 640,674. Rectifying. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd., PETER, L. H., and WALKER, A. H. B. Nov. 28, 1947, No. 31511. [Class 38 (ii)] A unit device for producing a high unidirectional voltage from a considerably lower alternating voltage for use with cathode-ray tube equipments of the type including thermionic valves having their anode circuit fed from the usual centre tapped transformer and rectifier system comprises a number of rectifiers 13-17 and condensers 18-21 interconnected to form a cascade voltage multiplier, the rectifiers and condensers being mounted on a panel 2 in a tubular case 1, the case being closed at the ends by plates 3, 5, the inner faces of which are provided with means 12 for supporting the panel and through which pass connections to be made to the external connections. The device may be incorporated in the equipment during manufacture or it may be used to replace an existing E.H.T. unit. The centre bolt 6 is used to attach the device to the equipment and may be hollow to pass the connections to the external circuits therethrough. Specification 640,675 is referred to.
Patent GB-1518842-A (GB)
Title: Disperse monoazo dyestuffs
IPC: C09B29/01
Filed: 1975-07-28
Abstract: 1518842 Disperse monoazo dyestuffs IMPERIAL CHEMICAL INDUSTRIES Ltd 28 May 1976 [28 July 1975] 31543/75 Heading C4P The invention comprises disperse monoazo dyestuffs of the Formula (1) wherein T' and T<SP>2</SP> are each hydrogen or C1 to 4 alkyl; Z is hydrogen, C1 to 4 alkyl or C1 to 4 alkoxy; Y is hydrogen, Cl to 4 alkyl, Cl to 4 alkoxy, chlorine, bromine, -NHCOX or -NHSO 2 X<SP>2</SP>; X<SP>1</SP> is C I to 4 alkyl, C1 to 4 alkoxy, amino or N-C I to 4 alkylamino, X<SP>2</SP> is C1 to 4 alkyl; A' and A<SP>2</SP> are each C1 to 6 alkylene, R<SP>1</SP> and R<SP>2</SP> are each C1 to 4 alkyl or C2 to 4 hydroxy alkyl and the ring B may contain additional substituents apart from sulphonic acid groups. They may be prepared by diazotizing an amine of the Formula (2) and coupling with a compound of Formula (3) The dyes of Formula (1) give yellow to blue shades to cellulose acetate, nylon and aromatic polyester textiles and may be used for the mass coloration of aromatic polyesters.
Patent GB-996718-A (GB)
Title: Improvements in and relating to moving bed reaction systems
IPC: B01J27/06
Filed: 1963-08-09
Abstract: <PICT:0996718/C1/1> In the production of chlorine by alternate oxidation and chlorination of active constituents comprising a polyvalent metal oxide/chloride on an inert support, said active constituents are renewed whilst passing through at least one reaction vessel at high temperature by injecting finely divided active constituents into or immediately before a zone in which said constituents are in a pasty condition.  In the Figure, granular masses comprising alumino-siliceous cylinders impregnated with ferric oxide, potassium chloride and cupric (or cadmium) chloride (promoter), are fed from reservoir 11 to chlorination vessel 1 via a channel 2 into which pulverized potassium chloride is blown from reservoir 12.  Chlorination is effected at 450-550 DEG  C.  Hydrogen chloride and/or ammonium chloride is introduced at 3 whereby the ferric oxide is chlorinated to form ferric chloride, and water and/or ammonia formed simultaneously is removed at 4.  The granules pass through channel 5 to oxidation vessel 6, iron filings being injected into the upper empty part of vessel 6 and air being admitted at 7, the vessel being maintained at 530-560 DEG  C., and chlorine and nitrogen are removed at 8.  The granules are finally returned to reservoir 11 by means of an air lift or trough-conveyer. The potassium can alternatively be injected as carbonate or hydroxide and the iron and copper as chloride, carbonate or oxide.